# John Orr Engineering School vs Word Waves

The clearest difference is in-app purchases: John Orr Engineering School at none against Word Waves's 3. John Orr Engineering School also leads on ads (none vs shown). Word Waves's advantage is iOS requirement (16.0 vs 18.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Word Waves sells 3 in-app purchases, starting at $4.99 per month. John Orr Engineering School asks for nothing beyond the download.

John Orr Engineering School ships an update every 2 weeks, Word Waves fortnightly. Both last shipped on October 30, 2026.

## The numbers

| Metric | John Orr Engineering School | Word Waves |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 53 MB | 50 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Nextnow Group (Pty) Ltd](https://appshunter.io/developer/1550928706) | [Zico Bakker](https://appshunter.io/developer/1801191299) |

## What reviewers say

### John Orr Engineering School

[App page](https://appshunter.io/ios/app/john-orr-engineering-school/id6741505975)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Word Waves

[App page](https://appshunter.io/ios/app/word-waves-learn-languages/id6743080817)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Word Waves Monthly | $4.99 | per month |
| Word Waves Yearly | $49.99 | per year |
| Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is John Orr Engineering School free?

John Orr Engineering School is free to download, with no in-app purchases.

### Is Word Waves free?

Word Waves is free to download, with in-app purchases available.

### Do John Orr Engineering School or Word Waves have ads?

Word Waves shows ads; John Orr Engineering School does not.

### Which is updated more often, John Orr Engineering School or Word Waves?

John Orr Engineering School ships an update every 2 weeks, and Word Waves fortnightly. Most recently, John Orr Engineering School was updated on October 30, 2026 and Word Waves on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*